Radiant|Lab Grown|IGI

5.53ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768628644

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG768628644

Diamond specifications and retailer prices

From $11,427 USD
As of November 1, 2026
Save $42,474 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $53,901 USD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.53ct lab-grown radiant diamond

This 5.53ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768628644 or 768628644. Listed at 13 retailers as of October 31, 2026, with prices from $11,427 to $53,901, a $42,474 spread on the same certified stone. With Clarity lists it at $53,901. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.53
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628644
Dimensions12.98 × 8.69 × 5.61 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.98 mm8.69 mm5.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628644
Side View
Table 61.0%Crown 42.3°Girdle: ThickPavilion 32.8°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $20,188 USD|Low: $11,058 USD|High: $53,901 USD|Avg: $24,581 USD|-19.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
With Clarity
November 1, 2026
Retailer 5$11,058 USD
Retailer 11$11,427 USD
Retailer 2$12,812 USD
Retailer 10$13,455 USD
Retailer 8$15,670 USD
Retailer 7$18,620 USD
Retailer 1$20,188 USD
Retailer 13$21,405 USD
Retailer 6$22,199 USD
Retailer 3$24,054 USD
Retailer 9$26,721 USD
Retailer 12$36,498 USD
Retailer 4$38,830 USD
With Clarity$53,901 USD

35 data points across 14 retailers

13 retailers$11,427 USD to $53,901 USD

A
Cheapest Retailer
-
$11,427 USD
A
Retailer 2
-
$12,812 USD
View
A
Retailer 3
-
$13,455 USD
View
A
Retailer 4
-
$15,670 USD
£12,339 GBP
View
A
Retailer 5
-
$18,620 USD
View
A
Retailer 6
-
$20,188 USD
£15,896 GBP
View
B+
Retailer 7
-
$21,405 USD
View
B+
Retailer 8
-
$22,199 USD
€21,142 EUR
View
B+
Retailer 9
-
$24,054 USD
View
B+
Retailer 10
-
$26,721 USD
ZAR 431,680 ZAR
View
B
Retailer 11
-
$36,498 USD
View
B
Retailer 12
-
$38,830 USD
View
Most Expensive
B
With Clarity
768628644 · Oct 31
$53,901 USD
View
12 more retailers have this diamond
Prices start from $11,427 USDSave up to $42,474 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
5.53ct Radiant
$11,427 USD